/**
* Process the text so that it will render with a combination of fonts if needed.
*
* @param text the text
* @return a <CODE>Phrase</CODE> with one or more chunks
*/
public Phrase process(String text) {
int fsize = fonts.size();
if (fsize == 0) throw new IndexOutOfBoundsException("No font is defined.");
char cc[] = text.toCharArray();
int len = cc.length;
StringBuffer sb = new StringBuffer();
Font font = null;
int lastidx = -1;
Phrase ret = new Phrase();
for (int k = 0; k < len; ++k) {
char c = cc[k];
if (c == '\n' || c == '\r') {
sb.append(c);
continue;
}
if (Utilities.isSurrogatePair(cc, k)) {
int u = Utilities.convertToUtf32(cc, k);
for (int f = 0; f < fsize; ++f) {
font = (Font) fonts.get(f);
if (font.getBaseFont().charExists(u)) {
if (lastidx != f) {
if (sb.length() > 0 && lastidx != -1) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx));
ret.add(ck);
sb.setLength(0);
}
lastidx = f;
}
sb.append(c);
sb.append(cc[++k]);
break;
}
}
} else {
for (int f = 0; f < fsize; ++f) {
font = (Font) fonts.get(f);
if (font.getBaseFont().charExists(c)) {
if (lastidx != f) {
if (sb.length() > 0 && lastidx != -1) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx));
ret.add(ck);
sb.setLength(0);
}
lastidx = f;
}
sb.append(c);
break;
}
}
}
}
if (sb.length() > 0) {
Chunk ck = new Chunk(sb.toString(), (Font) fonts.get(lastidx == -1 ? 0 : lastidx));
ret.add(ck);
}
return ret;
}
/**
* Truncates this <CODE>PdfChunk</CODE> if it's too long for the given width.
*
* <p>Returns <VAR>null</VAR> if the <CODE>PdfChunk</CODE> wasn't truncated.
*
* @param width a given width
* @return the <CODE>PdfChunk</CODE> that doesn't fit into the width.
*/
PdfChunk truncate(float width) {
if (image != null) {
if (image.getScaledWidth() > width) {
PdfChunk pc = new PdfChunk("", this);
value = "";
attributes.remove(Chunk.IMAGE);
image = null;
font = PdfFont.getDefaultFont();
return pc;
} else return null;
}
int currentPosition = 0;
float currentWidth = 0;
// it's no use trying to split if there isn't even enough place for a space
if (width < font.width()) {
String returnValue = value.substring(1);
value = value.substring(0, 1);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
// loop over all the characters of a string
// or until the totalWidth is reached
int length = value.length();
boolean surrogate = false;
char character;
while (currentPosition < length) {
// the width of every character is added to the currentWidth
surrogate = Utilities.isSurrogatePair(value, currentPosition);
if (surrogate) currentWidth += font.width(Utilities.convertToUtf32(value, currentPosition));
else currentWidth += font.width(value.charAt(currentPosition));
if (currentWidth > width) break;
if (surrogate) currentPosition++;
currentPosition++;
}
// if all the characters fit in the total width, null is returned (there is no overflow)
if (currentPosition == length) {
return null;
}
// otherwise, the string has to be truncated
// currentPosition -= 2;
// we have to chop off minimum 1 character from the chunk
if (currentPosition == 0) {
currentPosition = 1;
if (surrogate) ++currentPosition;
}
String returnValue = value.substring(currentPosition);
value = value.substring(0, currentPosition);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
int lengthUtf32() {
if (!BaseFont.IDENTITY_H.equals(encoding)) return value.length();
int total = 0;
int len = value.length();
for (int k = 0; k < len; ++k) {
if (Utilities.isSurrogateHigh(value.charAt(k))) ++k;
++total;
}
return total;
}
/**
* Constructs an <CODE>ImgWMF</CODE>-object, using a <VAR>filename</VAR>.
*
* @param filename a <CODE>String</CODE>-representation of the file that contains the image.
* @throws BadElementException on error
* @throws MalformedURLException on error
* @throws IOException on error
*/
public ImgWMF(String filename) throws BadElementException, MalformedURLException, IOException {
this(Utilities.toURL(filename));
}
/**
* Splits this <CODE>PdfChunk</CODE> if it's too long for the given width.
*
* <p>Returns <VAR>null</VAR> if the <CODE>PdfChunk</CODE> wasn't truncated.
*
* @param width a given width
* @return the <CODE>PdfChunk</CODE> that doesn't fit into the width.
*/
PdfChunk split(float width) {
newlineSplit = false;
if (image != null) {
if (image.getScaledWidth() > width) {
PdfChunk pc = new PdfChunk(Chunk.OBJECT_REPLACEMENT_CHARACTER, this);
value = "";
attributes = new HashMap();
image = null;
font = PdfFont.getDefaultFont();
return pc;
} else return null;
}
HyphenationEvent hyphenationEvent = (HyphenationEvent) noStroke.get(Chunk.HYPHENATION);
int currentPosition = 0;
int splitPosition = -1;
float currentWidth = 0;
// loop over all the characters of a string
// or until the totalWidth is reached
int lastSpace = -1;
float lastSpaceWidth = 0;
int length = value.length();
char valueArray[] = value.toCharArray();
char character = 0;
BaseFont ft = font.getFont();
boolean surrogate = false;
if (ft.getFontType() == BaseFont.FONT_TYPE_CJK && ft.getUnicodeEquivalent(' ') != ' ') {
while (currentPosition < length) {
// the width of every character is added to the currentWidth
char cidChar = valueArray[currentPosition];
character = (char) ft.getUnicodeEquivalent(cidChar);
// if a newLine or carriageReturn is encountered
if (character == '\n') {
newlineSplit = true;
String returnValue = value.substring(currentPosition + 1);
value = value.substring(0, currentPosition);
if (value.length() < 1) {
value = "\u0001";
}
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
currentWidth += font.width(cidChar);
if (character == ' ') {
lastSpace = currentPosition + 1;
lastSpaceWidth = currentWidth;
}
if (currentWidth > width) break;
// if a split-character is encountered, the splitPosition is altered
if (splitCharacter.isSplitCharacter(0, currentPosition, length, valueArray, thisChunk))
splitPosition = currentPosition + 1;
currentPosition++;
}
} else {
while (currentPosition < length) {
// the width of every character is added to the currentWidth
character = valueArray[currentPosition];
// if a newLine or carriageReturn is encountered
if (character == '\r' || character == '\n') {
newlineSplit = true;
int inc = 1;
if (character == '\r'
&& currentPosition + 1 < length
&& valueArray[currentPosition + 1] == '\n') inc = 2;
String returnValue = value.substring(currentPosition + inc);
value = value.substring(0, currentPosition);
if (value.length() < 1) {
value = " ";
}
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
surrogate = Utilities.isSurrogatePair(valueArray, currentPosition);
if (surrogate)
currentWidth +=
font.width(
Utilities.convertToUtf32(
valueArray[currentPosition], valueArray[currentPosition + 1]));
else currentWidth += font.width(character);
if (character == ' ') {
lastSpace = currentPosition + 1;
lastSpaceWidth = currentWidth;
}
if (surrogate) currentPosition++;
if (currentWidth > width) break;
// if a split-character is encountered, the splitPosition is altered
if (splitCharacter.isSplitCharacter(0, currentPosition, length, valueArray, null))
splitPosition = currentPosition + 1;
currentPosition++;
}
}
// if all the characters fit in the total width, null is returned (there is no overflow)
if (currentPosition == length) {
return null;
}
// otherwise, the string has to be truncated
if (splitPosition < 0) {
String returnValue = value;
value = "";
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
if (lastSpace > splitPosition && splitCharacter.isSplitCharacter(0, 0, 1, singleSpace, null))
splitPosition = lastSpace;
if (hyphenationEvent != null && lastSpace >= 0 && lastSpace < currentPosition) {
int wordIdx = getWord(value, lastSpace);
if (wordIdx > lastSpace) {
String pre =
hyphenationEvent.getHyphenatedWordPre(
value.substring(lastSpace, wordIdx),
font.getFont(),
font.size(),
width - lastSpaceWidth);
String post = hyphenationEvent.getHyphenatedWordPost();
if (pre.length() > 0) {
String returnValue = post + value.substring(wordIdx);
value = trim(value.substring(0, lastSpace) + pre);
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
}
}
String returnValue = value.substring(splitPosition);
value = trim(value.substring(0, splitPosition));
PdfChunk pc = new PdfChunk(returnValue, this);
return pc;
}
/**
* Constructs a <CODE>PdfChunk</CODE>-object.
*
* @param chunk the original <CODE>Chunk</CODE>-object
* @param action the <CODE>PdfAction</CODE> if the <CODE>Chunk</CODE> comes from an <CODE>Anchor
* </CODE>
*/
PdfChunk(Chunk chunk, PdfAction action) {
thisChunk[0] = this;
value = chunk.getContent();
Font f = chunk.getFont();
float size = f.getSize();
if (size == Font.UNDEFINED) size = 12;
baseFont = f.getBaseFont();
int style = f.getStyle();
if (style == Font.UNDEFINED) {
style = Font.NORMAL;
}
if (baseFont == null) {
// translation of the font-family to a PDF font-family
baseFont = f.getCalculatedBaseFont(false);
} else {
// bold simulation
if ((style & Font.BOLD) != 0)
attributes.put(
Chunk.TEXTRENDERMODE,
new Object[] {
new Integer(PdfContentByte.TEXT_RENDER_MODE_FILL_STROKE), new Float(size / 30f), null
});
// italic simulation
if ((style & Font.ITALIC) != 0) attributes.put(Chunk.SKEW, new float[] {0, ITALIC_ANGLE});
}
font = new PdfFont(baseFont, size);
// other style possibilities
HashMap attr = chunk.getAttributes();
if (attr != null) {
for (Iterator i = attr.entrySet().iterator(); i.hasNext(); ) {
Map.Entry entry = (Map.Entry) i.next();
Object name = entry.getKey();
if (keysAttributes.containsKey(name)) {
attributes.put(name, entry.getValue());
} else if (keysNoStroke.containsKey(name)) {
noStroke.put(name, entry.getValue());
}
}
if ("".equals(attr.get(Chunk.GENERICTAG))) {
attributes.put(Chunk.GENERICTAG, chunk.getContent());
}
}
if (f.isUnderlined()) {
Object obj[] = {null, new float[] {0, 1f / 15, 0, -1f / 3, 0}};
Object unders[][] = Utilities.addToArray((Object[][]) attributes.get(Chunk.UNDERLINE), obj);
attributes.put(Chunk.UNDERLINE, unders);
}
if (f.isStrikethru()) {
Object obj[] = {null, new float[] {0, 1f / 15, 0, 1f / 3, 0}};
Object unders[][] = Utilities.addToArray((Object[][]) attributes.get(Chunk.UNDERLINE), obj);
attributes.put(Chunk.UNDERLINE, unders);
}
if (action != null) attributes.put(Chunk.ACTION, action);
// the color can't be stored in a PdfFont
noStroke.put(Chunk.COLOR, f.getColor());
noStroke.put(Chunk.ENCODING, font.getFont().getEncoding());
Object obj[] = (Object[]) attributes.get(Chunk.IMAGE);
if (obj == null) {
image = null;
} else {
attributes.remove(Chunk.HSCALE); // images are scaled in other ways
image = (Image) obj[0];
offsetX = ((Float) obj[1]).floatValue();
offsetY = ((Float) obj[2]).floatValue();
changeLeading = ((Boolean) obj[3]).booleanValue();
}
font.setImage(image);
Float hs = (Float) attributes.get(Chunk.HSCALE);
if (hs != null) font.setHorizontalScaling(hs.floatValue());
encoding = font.getFont().getEncoding();
splitCharacter = (SplitCharacter) noStroke.get(Chunk.SPLITCHARACTER);
if (splitCharacter == null) splitCharacter = DefaultSplitCharacter.DEFAULT;
}
/**
* Converts the text into bytes to be placed in the document. The conversion is done according to
* the font and the encoding and the characters used are stored.
*
* @param text the text to convert
* @return the conversion
*/
byte[] convertToBytes(final String text) {
byte b[] = null;
switch (this.fontType) {
case BaseFont.FONT_TYPE_T3:
return this.baseFont.convertToBytes(text);
case BaseFont.FONT_TYPE_T1:
case BaseFont.FONT_TYPE_TT:
{
b = this.baseFont.convertToBytes(text);
final int len = b.length;
for (int k = 0; k < len; ++k) {
this.shortTag[b[k] & 0xff] = 1;
}
break;
}
case BaseFont.FONT_TYPE_CJK:
{
final int len = text.length();
for (int k = 0; k < len; ++k) {
this.cjkTag.put(this.cjkFont.getCidCode(text.charAt(k)), 0);
}
b = this.baseFont.convertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_DOCUMENT:
{
b = this.baseFont.convertToBytes(text);
break;
}
case BaseFont.FONT_TYPE_TTUNI:
{
try {
int len = text.length();
int metrics[] = null;
final char glyph[] = new char[len];
int i = 0;
if (this.symbolic) {
b = PdfEncodings.convertToBytes(text, "symboltt");
len = b.length;
for (int k = 0; k < len; ++k) {
metrics = this.ttu.getMetricsTT(b[k] & 0xff);
if (metrics == null) {
continue;
}
this.longTag.put(
new Integer(metrics[0]),
new int[] {
metrics[0], metrics[1], this.ttu.getUnicodeDifferences(b[k] & 0xff)
});
glyph[i++] = (char) metrics[0];
}
} else {
for (int k = 0; k < len; ++k) {
int val;
if (Utilities.isSurrogatePair(text, k)) {
val = Utilities.convertToUtf32(text, k);
k++;
} else {
val = text.charAt(k);
}
metrics = this.ttu.getMetricsTT(val);
if (metrics == null) {
continue;
}
final int m0 = metrics[0];
final Integer gl = new Integer(m0);
if (!this.longTag.containsKey(gl)) {
this.longTag.put(gl, new int[] {m0, metrics[1], val});
}
glyph[i++] = (char) m0;
}
}
final String s = new String(glyph, 0, i);
b = s.getBytes(CJKFont.CJK_ENCODING);
} catch (final UnsupportedEncodingException e) {
throw new ExceptionConverter(e);
}
break;
}
}
return b;
}
void readPng() throws IOException {
for (int i = 0; i < PNGID.length; i++) {
if (PNGID[i] != is.read()) {
throw new IOException("File is not a valid PNG.");
}
}
byte buffer[] = new byte[TRANSFERSIZE];
while (true) {
int len = getInt(is);
String marker = getString(is);
if (len < 0 || !checkMarker(marker)) throw new IOException("Corrupted PNG file.");
if (IDAT.equals(marker)) {
int size;
while (len != 0) {
size = is.read(buffer, 0, Math.min(len, TRANSFERSIZE));
if (size < 0) return;
idat.write(buffer, 0, size);
len -= size;
}
} else if (tRNS.equals(marker)) {
switch (colorType) {
case 0:
if (len >= 2) {
len -= 2;
int gray = getWord(is);
if (bitDepth == 16) transRedGray = gray;
else additional.put(PdfName.MASK, new PdfLiteral("[" + gray + " " + gray + "]"));
}
break;
case 2:
if (len >= 6) {
len -= 6;
int red = getWord(is);
int green = getWord(is);
int blue = getWord(is);
if (bitDepth == 16) {
transRedGray = red;
transGreen = green;
transBlue = blue;
} else
additional.put(
PdfName.MASK,
new PdfLiteral(
"[" + red + " " + red + " " + green + " " + green + " " + blue + " " + blue
+ "]"));
}
break;
case 3:
if (len > 0) {
trans = new byte[len];
for (int k = 0; k < len; ++k) trans[k] = (byte) is.read();
len = 0;
}
break;
}
Utilities.skip(is, len);
} else if (IHDR.equals(marker)) {
width = getInt(is);
height = getInt(is);
bitDepth = is.read();
colorType = is.read();
compressionMethod = is.read();
filterMethod = is.read();
interlaceMethod = is.read();
} else if (PLTE.equals(marker)) {
if (colorType == 3) {
PdfArray colorspace = new PdfArray();
colorspace.add(PdfName.INDEXED);
colorspace.add(getColorspace());
colorspace.add(new PdfNumber(len / 3 - 1));
ByteBuffer colortable = new ByteBuffer();
while ((len--) > 0) {
colortable.append_i(is.read());
}
colorspace.add(new PdfString(colorTable = colortable.toByteArray()));
additional.put(PdfName.COLORSPACE, colorspace);
} else {
Utilities.skip(is, len);
}
} else if (pHYs.equals(marker)) {
int dx = getInt(is);
int dy = getInt(is);
int unit = is.read();
if (unit == 1) {
dpiX = (int) ((float) dx * 0.0254f + 0.5f);
dpiY = (int) ((float) dy * 0.0254f + 0.5f);
} else {
if (dy != 0) XYRatio = (float) dx / (float) dy;
}
} else if (cHRM.equals(marker)) {
xW = (float) getInt(is) / 100000f;
yW = (float) getInt(is) / 100000f;
xR = (float) getInt(is) / 100000f;
yR = (float) getInt(is) / 100000f;
xG = (float) getInt(is) / 100000f;
yG = (float) getInt(is) / 100000f;
xB = (float) getInt(is) / 100000f;
yB = (float) getInt(is) / 100000f;
hasCHRM =
!(Math.abs(xW) < 0.0001f
|| Math.abs(yW) < 0.0001f
|| Math.abs(xR) < 0.0001f
|| Math.abs(yR) < 0.0001f
|| Math.abs(xG) < 0.0001f
|| Math.abs(yG) < 0.0001f
|| Math.abs(xB) < 0.0001f
|| Math.abs(yB) < 0.0001f);
} else if (sRGB.equals(marker)) {
int ri = is.read();
intent = intents[ri];
gamma = 2.2f;
xW = 0.3127f;
yW = 0.329f;
xR = 0.64f;
yR = 0.33f;
xG = 0.3f;
yG = 0.6f;
xB = 0.15f;
yB = 0.06f;
hasCHRM = true;
} else if (gAMA.equals(marker)) {
int gm = getInt(is);
if (gm != 0) {
gamma = 100000f / (float) gm;
if (!hasCHRM) {
xW = 0.3127f;
yW = 0.329f;
xR = 0.64f;
yR = 0.33f;
xG = 0.3f;
yG = 0.6f;
xB = 0.15f;
yB = 0.06f;
hasCHRM = true;
}
}
} else if (iCCP.equals(marker)) {
do {
--len;
} while (is.read() != 0);
is.read();
--len;
byte icccom[] = new byte[len];
int p = 0;
while (len > 0) {
int r = is.read(icccom, p, len);
if (r < 0) throw new IOException("Premature end of file.");
p += r;
len -= r;
}
byte iccp[] = PdfReader.FlateDecode(icccom, true);
icccom = null;
// try {
// icc_profile = ICC_Profile.getInstance(iccp);
// }
// catch (Exception e) {
icc_profile = null;
// }
} else if (IEND.equals(marker)) {
break;
} else {
Utilities.skip(is, len);
}
Utilities.skip(is, 4);
}
}
/**
* Reads a PNG from a file.
*
* @param file the file
* @throws IOException on error
* @return the image
*/
public static Image getImage(String file) throws IOException {
return getImage(Utilities.toURL(file));
}
